Features: brand new and high quality Gigabit fiber optic network card, PCI slot, fast heat dissipation, high speed and stability. Gigabit optical fiber port, fully shielded optical fiber interface, reduce loss, faster transmission speed, with heavy-duty anti-deformation baffle. Gold-plated PCI gold fingers make contact more reliable, reduce hardware contact errors and cause sudden disconnection and other problems! Low power consumption circuit board, the current is faster and more stable. The chip/RC82545 controller is used to make the speed faster and more stable. Specifications: Product Name: TXA087 PCI Gigabit Fiber Network Card Applicable Network Type: Fast Ethernet Bus Type: Pci-e Transmission Speed: 10/100/1000Mbps Full duplex/half Duplex: full duplex/half duplex adaptive Network Interface Type: Optical Fiber Sfp port Product Model: Desktop Main chip: used for RC82545 Network standards: IEEE 802.1, IEEE 802.1Q, IEEE 802.2, IEEE 802.3ac, LEEE 802.3az, IEEE 802.3x, IEEE 802.3z! IEEE 802.3ad For Micro for Windows (32 and 64 bit) Sco UnixWare 7.x, Open Unix 8.0 Novell Odi Novell Netware Linux Enterprise Server 9.0 Red Hat Enterprise Linux 4.0 Linux Free Bsd for Sun Solaris- Micro DOS VMWare EX Colour: Black Material: PCB+ Metal Material Package Includes: 1 x PCI Gigabit Optical Fiber Network note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.